Charge-forming device



Oct. 23 1923.

c. H, HALLAUER CHARGE FORMING DEVICE Filed Nov. 5 1921 2 Sheets-"Sheet l gwuewtoz, [471E152 Zla uer,

Oct. 23,1923. 1,471,551

C. H. HALLAUER CHARGE FORMING DEVICE Filed Nov. 5; 1921 2 Sheets-Sheet 2 I gwvewfoz Patented Oct. 23, 1923.

PATENT OFFICE.

CARL H. HALLAUER, LOS ANGELE, CALIFORNIA.

cannon-resume nnvrcn Application filed November 8, 1921. Serial No. 512,485. I

To all whom it may concern:

Be it known that I, CARE H. HALLAUER, a citizenof the United States, residing at Los'Angeles', in the county ofLos Angeles and Stateof California, have invented new and useful Improvements in Charge-Forming Devices, of. which the following 'is .a specification. p v

My invention relates to the heating, carburetting and feeding of explosive vapors to internal combustion engines and. morev specifically to the manifolds connecting the carburetor and engine and also pertains to a means for delivering a supply of heated air tothe carburetor, and heated or cold air to the intake manifold.

An object of my invention is to make a throttle valve adapted to have variable openings to control the temperature ofthe e0 fuel mixture by means of changing the openings of the throttle valve to suit the needs of the engine. To-ohtain a comparatively high temperature of the fuel mixture at light loads and 2 a lower temperature at heavy loads.

Another object is to provide means for selecting the amount of fuel required in relation to the volume of air necessary in a, either-a cold state, or a hot state, and varia- FB 'tions of the same, and at times the use of both hot and cold air to be added tothe constantly heated mixture from the carburetor. p I I A further object is to provide a multiple throttle valve housing, connected with. the heated chamber of the exhaust manifold and also connected to the carburetor inlet manifold and adapted to have a multiple I "valve mounted therein, ,to connect thevarious leads respectively-- thereto, and therefrom the carburetor and internal. combustion engine to obtain the proper fuel mix ture necessary therefor, causing heated .air to pass through the carburetor to the'ex- 5 clusion of cold air, with means to enable an operator to selectively cause a change of temperature according to the work to be performed by an internal combustion engine.

6 I A still further objectis to traverses whereby the air inlet and the mixture out let pipes to and from the carburetor'may be heated at. all times to prevent condensation of the mixed gas supply'to the engine when it is in operation.

Other objects will appear hereinafter.

The invention is illustrated in the accompanying' drawings in which:

Fig. 1 is a fragmentary side elevation of an internal combustion engine, showing the intake and exhaust manifold and the carburetor with connections.

Fig; 2'is a sectional view partly in elevation taken on the lines 2-2 of Fig. 1.

Fig. 3 is a part sectional and elevational view taken on the same plane'as Fig. 1, to clearly show the exhaust manifold with the air heating pipe mounted therein;

Fig. 4 is a view partly in section and partly in elevation taken on the line 44 7 in Fig. 1.

, Fig. 5 is a sectional View taken substantially on the lines 5-5 of Figs. 2 and is I Fig. 6 is a projected diagram of the side of the throttle valve housing. Fig. 7 is a'p-rojected diagram of the in side of the throttle valve cylinder.

Figs. 8, 9, 10, 11, 12, 13 and 14 are assembled projected diagrams illustrating the various positions in which the throttle valve will. be used in the distribution of the fuel mixture with hot and cold air. These views are for the purpose of clearly showing the valve operation.

' Having described the views, I now refer to the drawings in which like parts will be identified by like numbers.

. More specifically 1 indicates an internal combustionengine on which is mounted an exhaust manifold 2, and a carburetor vin- 90 take manifold 3. Connected to the exhaust manifold 2, and the carburetor intake manifold 3, is a throttle valve housing 4:, in which is mounted a multiple throttle valve 5. A cap screw 6 fastens the upper por- 95 tion .7 of the valve housing 4 to the exhaust manifold 2, and a cap screw 8 connects the lower portion 9 of the valve housing 4 to the intake manifold 3.- The exhaust main-- fold 2 has a shell 10 cast upon its uppefiflo side, having an air space 11, traversing the full length of the. shell .10, being open at either. end so that the top of the exhaust manifold 2 and the shell 10, being integrally cast form a hot air passageway. l Mounted in an exhaust -manifold 2, is

a" hot air tube 12, which is held fast by acting as a metal core when casting the exhaust manifold 2. Its intake end is placed centrally from either end of the exhaustmanifold 2, as designated by numeral 13,

and projects a slight distance and opens above the upper wall of the exhaust manifold. The tube is formed with a straight portion 14, extending 'rearwardly in the manifold to a bend and then extendin downwardly to a right angle bend 16 and passes through and beyond the lower wall 17 of the exhaust manifold. The end of the tube is threaded to receive a union nut 19 and is fixed as at 18 in the lower wall 17 of the exhaust manifold 2. Thus I have fixed a metal tube 12 in the exhaust manifold 2 for'the purpose of leading hot air direct to the carburetor mixing chamber.

The union nut 19 connects a carburetor inlet pipe 20 to the hot air tube 12. Fixed to the pipe 20 is a carburetor 21 having an outlet pipe 22. The lower connection of said'pipe 22 is connected to the carburetor 21 by means of a flange connection 23. The pipe 22 extends upwardly and is fixed by means of a union nut 24 to a spout 25 cast on the throttle valve housing 4.

In the upper portion 7 of the valve housing is a hot air conduit 26 and in the side of a shell 10 is the shell conduit 27. These two conduits communicate and form a hot air passage from the air space 11 directly to the throttle valve 5; A cold air inlet opening 28 is formed at the top of the throttle valve housing 4. The throttle valve 5 has an irregular shaped hot air inlet opening 29 nearthe upper side, connecting the opening 26 or the opening 28 with the throttle valve chamber 30. The irregular shaped opening 29 will be described later in detail; the purpose f which, is for the admittance of hot air, cold air or both to the chamber 30, in variable amounts. An air and fuel mixture outlet opening 31, is formed on the lower side of the throttle valve 5, connecting the chamber 30 to an air and fuel mixture conduit in the lower portion 9 of the throttle valve 4, also there is a fuel mixture inlet opening 33 about the middle of the I outside of the valve to connect the spout The caps 34 and 35 act as bearings for the 25 and the throttle valve chamber 30.

The throttle valve housing 4 has a screw threaded cap 34 on one end and a screw threaded cap 35 on the other end, the purpose of which is to enclose the throttle valve 5 in the housing 4. A pintle36 projects from the end wall 37 of the throttle valve 5 on one end, and a stubshaft 38 projects from the wall .39 on the other end of the throttle valve 5. Mounted and fixed on this shaft 38 is a control lever 40. adapted to receive connections (not shown) for manually operating the throttle valve 5.

valv cylinder5. I v

. The mixture inlet opening 41 of the intake manifold 3 is shown in motion with the engine intake valve open- Fig. 2 I in coning 42 in the engine 1, and the exhaust out- Referring to Fig. 7, illustrating the throttle valvecylinder in diagram, the various openings are designated as follows: 29 indicates the irregular shaped opening,

33 the fuel mixture opening and 31 indicates the air and fuel mixture outlet opening.

In Fig. 8 is shown the normal position of the valve cylinder 5 when the engine is idling or doing very light work.

The irregular shaped hot air inlet opening 29 is a distorted hexagonal opening in the wall of the valve cylinder 5. While the irregular shaped hot air inlet opening 29 is changing the volume of hot, and cold air it will be seen that the spout opening 25 is gradually increased and will attain its full area in the last stage shown in Fig 14, and that the air and mixture conduit opening 32 will increase to its full area shown in Fig. 11, and remain so until the full area of the spout opening 25 is reached in Fig. 14.

Assuming a progressive rotation of the valve 5 is used, in the direction of the arrow 45 in Figs. 8 to 14 inclusively, an understanding will be had of the functioning of the irregular shaped hot air .inlet opening 29. First the valve 5 is rotated as shown in Fig. 9 until the point 46 of the irregular shaped hot air inlet opening 29 uncovers the hot air conduit opening 26 near its transverse -center and reaches the edge 47 of the hotair' conduitopening 26, thereby forming a narrow triangular opening registering with the rectangular hot air conduit opening 26. It will be seen that the movement in elther direction of the valve 5 will change the area of the hot air conduit opening 26 and the volume of hot air admitted to the combustion chamber 30.

Rotating the valve cylinder 5 so that the point 46 eaches the edge of the cold air" opening as shown in Fig. 10, will increase the hot air conduit opening 26 to its fullarea.

Rotation of the valve 5 until the point 46 uncovers the cold air inlet opening 28 as shown in Fig. 11, will form a triangular opening for the admittance of cold air. It is now seen that there is a full opening for the hot air and a partial opening for the cold air to the valve chamber 30. Rotating the valve 5 until the hot air conduit open ing 26 is partially closed the point 49 will be in alignment with the edge 50 of the hot til the point 49 reaches the edge 47, the hot air conduit opening 26 Will be entirely closed, thereby shutting off the hot ai and increasing the cold air inlet opening 28 whereby a greater amount of cold air will be admitted to the combustion chamber 30, as shown in Fig. 13. Rotating the valve 5 to its last positlon as shown inFig. 14, the point 46 will be in alignment with the line 51 and the point 49 will be in alignment with the line 48 at which position a full opening of the openings 29 is obtained for the admission of cold air, and likewise the spout opening and the air and mixture conduit opening 32 respectively willbe fully opened through the valve openings 33 and 31 for the admittance of a fuel mixture to the valve chamber 37 and the discharge of themixed gases 1 through the air and mixture conduit 32 the .intake manifold 3, then to the engine intake valve opening 42.

As described the hot air tube 12 will become heated by the engine exhaust b reason of its position in the exhaust mani old 2 so a that any air drawn through the tube 12 will the mixture passing into the engine will have a greater explosive force. As the car- -buretor air leads will be heated while the 1 appended claims.

engine is. operating, condensation will be practically eliminated. This multiple valve acts as a compensating device for the engine in using .an explosive fuel mixture that may attimes be composed of part hot air passing through the carburetor with an added supply of more hotair or with part hot air and some cold air or with all cold air combined with the heated fuel mixture from the carburete'r,

1 "By the operation of-the valve to change and vary the several openings almost any desirable result can be obtained to better enable an internal combustion engine to perform more efiiciently, economically and with more power than at present obtained in this type of engine. n While I have shown and described'a specific embodiment-of my invention, I do not limit myself to the exact details of construction shown, but may resort to such changes and modifications as occasion may require coming within the scope of the WhatIclaimis: d I

1-. A charge-forming device comprising anexhaust manifold a shell mounted upon said exhaust manifold, an a r heating tube fixed in the said manifold, a hollow distributor valve adapted to receive hot air, cold air and fuel mixture through separate inlets leading thereto, a carburetor, an inlet and an outlet pipe to said carburetor communieating with said tube and said distributor valve respectively, said valve having a common outlet for its inlets, and means for manually operating said valve.

2. A charge-forming device comprising a exhaust manifold, a shell mounted on said exhaust manifold to leave a space between the top of said manifold and said shell, a hot air outlet opening at one side therefor, a mixture valve having a hot air opening adapted to communicate with the hot air outlet, a tube leading from 'the space in the shell through the upper wall of the exhaust manifold and leading rearwardly and out near the rear bottom wall of the manifold, a carburetor, said carburetor having an inlet and outlet, a communication between the carburetor and said valve, a communication between said tube and the carburetor intake, said valve being provided a cold air inlet and having a discharge opening, and an intake manifold communicating with the valve discharge opening.

3. In a charge-formingdevice, a valve housing formed with a hot air inlet, a cold air inlet, a fuel mixture inlet and an explosive mixture outlet; a cylinder mounted within said valve housing and provided with openings to register with the-openings in the housing, the hot air openingbeing an elongated slot on the side of the said housing,-

the elongation being on a line with the axis of the cylinder, a rectangular coldair opening, its longest dimension in line with the axis of the cylinder, afuel mixture inlet opening in the form of elongated slot traversing the circumference of the cylinder, and a substantiallysquare opening in said cyl 'inder serving as a common outlet.

4. In a charge-forming device, a valve a housing having openings, 9. cylinder fioatably and rotatably mounted insaid housing and formed with openings adapted to register with the openings in the housing; the cylinder openings comprising an elongated cold air opening, a fuel mixture inlet opening, an explosive mixture outlet opening and a hot air opening of a distorted hexagonal, shape and having a side edge making an obtuse angle that will by rotation of the cylinder gradually enlarge. a housing, opening and having its other side formed with an obtuse angle pointing inthe opposition direction and adapted to gradually restrict and close one of the housing openings and also gradually unco'vering'anoth'er of the housing openings whilethe first named opening is being restricted;

5. In a charge-forming device a valve housing having openings, a cylinder floatobtuse angle that will by rotation gradually enlarge one of the housing openings and its other side having an obtuse angle pointing in the opposite direction and adapted to gradually restrict and close the opening and also gradually uncovering another opening while the first named opening is being restricted and by rotating the cylinder still further completes a full opening of the last named opening.

6. In a charge forming device, a valve housing formed with a hot air inlet, a cold air inlet, a fuel mixture inlet, and an explosive mixture out-let; a cylinder in said housing, said hot air and cold air inlets being elongated lengthwise of the cylinder,

the fuel mixture inlet being elongated circumferentially of the cylinder, .said housing being also formed with an outlet; said cylinder floatably and rotatably mounted and formed with an air opening, a fuel mixture inlet opening, and an explosive mixture outlet opening, said openings adapted to register with the inlets and outlet in said housing, and disposed so that on partial rotation of the cylinder the hot air inlet will be restricted and the .cold air inlet partly open, a fuel inlet and exhaust outlet will be partly open, and whereby when the cylinder is further rotated the hot air inlet will be closed, and the cold air inlet, fuel mixture inlet, and the exhaust outlet will be fully opened. e 7. In a charge forming device, the combination of a carburetor, an exhaust manifold, an intake manifold, a rotar yalve, a passage controlled by said valve eading to the intake manifold, a communication between said carburetor and said passage controlled by said valve, air heating means, means controlled by said valve for delivering heated air. to said passage from said air heating means, and means controlled by said valve for delivering cool air to said passage.

8. In a charge forming device, the combifor deliveringcool air to said passage said valve adapted'to vary the proportions of the heated air and the cool air delivered to said passage.

9. In a charge forming device, the com bination of a carburetor, an exhaust manifold, an intake manifold, a rotary valve a passage controlled by said valve leading to the intake manifold, a communication between said carburetor and said passage controlled by said valve, air heating means, means controlled by said valve for delivering heated air to said passage from said air heating means, and means controlled by said valve for delivering cool air to said passage said valve adapted to vary the proportions of the heated air and the cool air delivered to said passage and to vary the communication between the carburetor and the passage coincident with the variation of the heated air and cool air delivered to the passage.

10. In a charge forming device, the combination of a carburetor, an exhaust manifold, an intake manifold, a rotary valve, a passage controlled by said valve leading to the intake manifold, a communication between said carburetor and said passage con trolled by said valve, air heating means, means controlled by said valve for deliver ing heated air to said passage from said air heating means, and means controlled by said valve for delivering cool air to said passage said valve adapted to vary the proportions of the heated air and the cool air delivered tosaid passage and to vary the communication between the carburetor and the passage coincident with the variation of the heated air and cool air delivered to the passage, said valve being also adapted to cut off either the heated air or the cool air yet maintaining the communication between the carburetor and passage open.

CARL H. HALLAUER. 

